On your lab report, there should be a column labeled "Reference Range", with a set of numbers, (such as 0.4-4.0 mIU/L). Sometimes, it's just in paranthesis beside the result. This is what we are looking for. It's important because these ranges vary from lab to lab or they may even vary within the same lab; so they must come from your own report.
Knowing those ranges, will help us see where your results fall within them (or if your levels are outside the range), so we can help determine whether you might be over or under medicated and may need adjustments in your med.
Thank you for your comment, not sure what you mean.
What are the lab ranges for the FT3 and FT4? These vary from lab to lab, and may even vary within the same lab, at times; they must come from your own report(s).
TSH <0.03 FT4= 23 FT3= 5.4
TSH <0.12 FT4=20 TF3= 4.3
TSH <0.03 FT4=4 TF3= 19.1
TSH <0.10 FT4=2 TF3= 4.9
TSH <0.21 FT4=3 TF3=3.5
TSH <0.03 FT4=2 TF3=8.7
TSH <0.03 FT4=3 TF3=4.6
TSH <0.03 FT4=2 TF3=5.4
TSH <0.03 FT4=2 TF3=5.8
The above results are taken from 2007 to November 2009
Why both thyroxine and Tetroxin? They are both T4 meds. Do you have any other test results besides TSH? TSH is a pituitary hormone that is affected by so many variables that it is inadequate as a diagnostic by which to medicate a thyroid patient.
In my opinion the best way to treat a thyroid patient is to test and adjust levels of the actual, biologically active thyroid hormones, free T3 and free T4, with whatever medication is necessary to relieve symptoms, without being constrained by resultant TSH levels. It appears that your doctor is, at least, not reacting incorrectly to your TSH level and wanting to reduce your meds. However, if you haven't been tested for FT3 and FT4, then you can't really know if your dosage is correct or not. From the symptoms you mention, I suspect that it is not adequate for you.
So if you have been tested for FT3 and FT4, then let's have a look at the results and their reference ranges. If not, then you need to get your doctor to test for FT3, FT4, and TSH. Hypo patients frequently have problems with low Vitamin D, B12, and ferritin/iron, so you should get those done as well. If your doctor resists testing for FT3, then you should insist on it and not take no for an answer. Remember that you are the customer.
FT3 is the most important thyroid test because FT3 largely regulates metabolism and many other body functions. Also, studies have shown that FT3 levels correlate best with hypo symptoms, while FT4 and TSH did not correlate. Many members report that symptom relief for them required that FT3 was adjusted to the upper part of its range and FT4 adjusted to at least midpoint of its range.
When you can get a copy of the lab report for these tests, then post results and reference ranges and members will be glad to help interpret and advise further.